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  本文關(guān)鍵詞：基于鋼筋砼統(tǒng)一本構(gòu)的空心板梁全過程分析方法研究　出處：《重慶交通大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 鋼筋混凝土 有限元 30m空心板梁 受載全過程 宏觀應(yīng)變

【摘要】：本文依托導(dǎo)師周志祥教授所承擔(dān)的國家973計劃中的“橋梁結(jié)構(gòu)行為演化理論與安全監(jiān)測方法研究”和重慶市自然科學(xué)基金（重點(diǎn)）中的“橋梁面相感知方法與安全評價理論研究”兩個課題，以30m跨預(yù)應(yīng)力空心板梁的全壽命過程研究為基礎(chǔ),分析梁結(jié)構(gòu)受載全過程性能分析方法和理論，為解決鋼筋混凝土整橋的變形及病害計算打下基礎(chǔ)。本文主要研究以下幾方面的內(nèi)容： ①探討統(tǒng)一本構(gòu)關(guān)系在UMAT（ABAQUS的二次開發(fā)平臺）中的實現(xiàn)方法，并通過UMAT切線剛度法的程序計算與ABAQUS自帶材料模型計算結(jié)果進(jìn)行對比分析，驗證UMAT程序在本構(gòu)關(guān)系實現(xiàn)上的準(zhǔn)確性、可靠性。 ②研究30m足尺空心板梁在靜載作用下各種裂縫的發(fā)生、發(fā)展及其對結(jié)構(gòu)性能的影響，以及抗裂、強(qiáng)度、裂縫恢復(fù)性能和構(gòu)件的變形直至破壞的全過程實驗研究。 ③通過ABAQUS中用戶材料子程序UMAT的開發(fā)，，實現(xiàn)基于鋼筋混凝土統(tǒng)一本構(gòu)關(guān)系的30m預(yù)應(yīng)力空心板梁受載全過程的模擬。 ④將ABAQUS計算的變形、應(yīng)力、等全過程分析結(jié)果與30m足尺空心板梁實驗結(jié)果進(jìn)行對比分析研究，初步探索了基于鋼筋混凝土統(tǒng)一本構(gòu)關(guān)系的鋼筋混凝土結(jié)構(gòu)受載全過程分析方法。 ⑤結(jié)合鋼筋混凝土構(gòu)件軸心拉壓全過程實驗與30m空心板梁仿真分析計算結(jié)果，初步探討了鋼筋混凝土結(jié)構(gòu)中平均裂縫間距與宏觀應(yīng)變、平均裂縫寬度與宏觀應(yīng)變的計算關(guān)系。
[Abstract]:This paper relies on the theory of bridge structure behavior evolution and safety monitoring method in the 973 National Plan undertaken by Professor Zhou Zhixiang, and Chongqing Natural Science Foundation (emphasis). There are two topics in this paper: the research of bridge phase perception method and safety evaluation theory. Based on the study of the whole life process of the 30m span prestressed hollow slab beam, the analysis method and theory of the whole process performance of the beam structure under load are analyzed. In order to solve the deformation and disease calculation of reinforced concrete bridge, this paper mainly studies the following aspects: 1. The realization method of unified constitutive relation in the secondary development platform of UMAT(ABAQUS is discussed. The results of UMAT tangent stiffness method and ABAQUS material model are compared and analyzed to verify the accuracy and reliability of UMAT program in the realization of constitutive relation. (2) to study the occurrence, development and influence of cracks on structural properties, crack resistance and strength of 30m full-scale hollow slab beam under static load. Experimental study on the whole process of fracture recovery performance and deformation and failure of members. Through the development of the user material subroutine UMAT in ABAQUS, the simulation of the whole loading process of 30m prestressed hollow slab beam based on the unified constitutive relation of reinforced concrete is realized. (4) the analysis results of deformation, stress and other processes calculated by ABAQUS are compared with the experimental results of 30m full-scale hollow slab beam. Based on the unified constitutive relation of reinforced concrete, the whole process analysis method of reinforced concrete structure under load is preliminarily explored. 5 combined with the experimental results of the whole process of axial tension and compression of reinforced concrete members and the results of simulation analysis and calculation of 30m hollow slab beam, the average crack spacing and macroscopic strain in reinforced concrete structure are preliminarily discussed. The relation between average crack width and macroscopic strain.
【學(xué)位授予單位】：重慶交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U441;U448.34

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 徐明,陳忠,侯善民,左江;勁性混凝土柱的試驗及應(yīng)用研究[J];東南大學(xué)學(xué)報;1998年02期

2 趙衛(wèi)平;肖建莊;;帶肋鋼筋與混凝土間粘結(jié)滑移本構(gòu)模型[J];工程力學(xué);2011年04期

3 董毓利,樊承謀,潘景龍;鋼纖維混凝土本構(gòu)關(guān)系的研究[J];哈爾濱建筑工程學(xué)院學(xué)報;1993年02期

4 王玉銀,張素梅,郭蘭慧;受荷方式對鋼管混凝土軸壓短柱力學(xué)性能影響[J];哈爾濱工業(yè)大學(xué)學(xué)報;2005年01期

5 邵卓民;;鋼筋砼結(jié)構(gòu)統(tǒng)一理論(上)[J];建筑結(jié)構(gòu);1992年02期

6 過鎮(zhèn)海,張秀琴,張達(dá)成,王如琦;混凝土應(yīng)力-應(yīng)變?nèi)�的試驗研究[J];建筑結(jié)構(gòu)學(xué)報;1982年01期

7 潘友光,鐘善桐;鋼管砼的軸壓本構(gòu)關(guān)系(上)[J];建筑結(jié)構(gòu)學(xué)報;1990年01期

8 查曉雄;余敏;黎玉婷;鐘善桐;;實空心鋼管混凝土軸壓承載力的統(tǒng)一理論和公式[J];建筑鋼結(jié)構(gòu)進(jìn)展;2011年01期

9 樊曉剛;薛艷東;郝江華;郝麗;;型鋼混凝土粘結(jié)滑移本構(gòu)關(guān)系的分析研究[J];四川建材;2011年03期

10 孟宇;毛毳;吳素瓊;陳悅;李娜;曾正強(qiáng);;鋼筋混凝土靜力等效簡化模型的數(shù)值模擬[J];天津城市建設(shè)學(xué)院學(xué)報;2011年01期

本文編號：1398767